The twist-2 quark-antiquark distribution amplitudes of
light pseudoscalar and longitudinally polarized vector
meson are expressed as
[1]}, [2]}, [3]},
\({\phi }_{P}^{a}(x)&=&6x\bar{x}\sum \limits _{n}a_{n}C_{n}^{3/2}({\xi }), \\{\phi }_{V}(x)&=&6x\bar{x}\sum \limits _{n}a_{n}^{\parallel }C_{n}^{3/2}({\xi }),\) 
